axis-angle rotations of armature nodes.

I am making an armature that I can use in the torque3d game engine. Torque has some built in animations that I would like my model to be able to use. In order to do that I need the position and axis-angle rotation of each joint node to be the same as the root pose of the torque model.
I have the bones positioned correctly but I don’t know how to set the rotations. Blender handles joints differently. Blender seems to calculate the rotation of each node by the position of the tail of the bone. Is there some way to manually enter each rotation?
I realize that I will probably have to break apart the bones in the skeleton so that they aren’t always stuck pointing toward the next node in the chain.